Redirect URL's when using Windcave as a redirect payment gateway.

[LiamKarlMitchell]

Hi, is this in a stable state?

At a glance, it looks like the redirect URL's are hardcoded to example.com.

Should we be able to pass these urls.
'cancelUrl', 'returnUrl'

Additionally should there be a 2nd gateway class for using Windcave as redirect/hosted page rather than providing the card details. Using createSession on the gateway does not share the idea of a unified interface other Omnipay drivers use a purchase method.

I was also looking at this driver but seems to be different to the URL and documentation that Windcave gave me.
https://github.com/thephpleague/omnipay-paymentexpress/tree/master/src